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A comment on Open research, stronger privacy: Making Firefox users harder to fingerprint. Parent comment

Re:Open research, stronger privacy: Making Firefox users har... by skaul on Wednesday November 11, 2026 @12:56PM (#50456346)
If by "tainting" the data you mean subtly changing it in a way that preserves functionality while making it harder to use for fingerprinting, then this is what we do at Brave browser for many of our anti-fingerprinting protections: https://brave.com/glossary/fingerprinting/#how-can-i-prevent...
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Re:Open research, stronger privacy: Making Firefox users har... by nneonneo on Wednesday November 11, 2026 @01:33PM (#50456806)
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Re:Open research, stronger privacy: Making Firefox users har... by MayeulC on Wednesday November 11, 2026 @03:04PM (#50457920)
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Re:Open research, stronger privacy: Making Firefox users har... by Sayrus on Wednesday November 11, 2026 @04:08PM (#50458685)
Side-channels on such a model would be very hard to enforce: if any element of the page "moves around other elements", all other elements must be tainted as they'd leak information on the tainted DOM node. Presence or absence of a DOM node can leak information about a tainted context.

The second idea is vulnerable as well. As long as you can exfiltrate tainted data to untainted context, the protection will be quite weak.

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